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Will current PSU handle this GTX 460 upgrade?

Last response: in Graphics & Displays
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August 8, 2010 2:19:22 PM

I'm looking to upgrade my current system's video card from an 8600GT to the GTX 460 1GB. I only have a 400W PSU though, so that concerns me. I know nVidia says 450W, but my Corsair 400W has 30A on the 12V which I am hoping will allow it to cover it. Anyway, here is the spec:

Phenom II 940 3.0GHz (stock speed)
640GB 7200 WD Caviar Black
Gigabyte 790X mobo
2x2 GB RAM
1 DVD-RW
CM690 Case (3 case fans I think, 1 with LED)
1 PCI Ethernet card (on-board died from lightning)
Corsair 400CX

You think the Gigabyte GTX 460 1GB will run in that system with that PSU? Thanks.

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a b Î Nvidia
August 8, 2010 9:34:46 PM

you will be fine. the corsair 400 is actually a 450w PSU labeled as 400w plus you have enough amps on your 12v (the more important spec)
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a b Î Nvidia
August 8, 2010 9:58:39 PM

Yeah, for the vast majority of 400w PSUs I would say replace it but the 400CX should be fine.
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August 9, 2010 5:32:45 PM

Best answer selected by awaken688.
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August 9, 2010 5:33:21 PM

Sounds good. I'll update this after I install it and try it out.
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August 12, 2010 4:03:38 PM

awaken688 said:
Sounds good. I'll update this after I install it and try it out.


Hey awaken, I'm in the same boat as you. I have the corsair 400cx and I'm looking to order the GTX 460 1GB. Could you reply here if you had success with it? Based on what I have read, it shouldn't be a problem. Thanks.
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a b Î Nvidia
August 15, 2010 5:09:28 PM

Whatever, the 400CX can handle that card, even OCed.
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a b Î Nvidia
August 15, 2010 5:44:45 PM

Assuming you mean the Antec EA430 both that power supply and the 400CX have 360w(or 30 amps) on the +12v rail. At stock settings both the HD5850 and GTX 460 tend to max out at around 120w(or 10 amps) during normal gaming and 150w(or around 13a) during stress testing. 200+ watts for the rest of the system should be more than enough for the average person and certainly for this guy's system.
In short either of those power supplies should be enough for either the HD5850 or GTX 460. The only situation they might not be able to handle is if you give either card a high OC and run something like Furmark as well as something to stress the CPU.
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August 19, 2010 12:47:26 PM

doje1999 said:
Hey awaken, I'm in the same boat as you. I have the corsair 400cx and I'm looking to order the GTX 460 1GB. Could you reply here if you had success with it? Based on what I have read, it shouldn't be a problem. Thanks.


Sorry for the delay in the update. I installed the Gigabyte 460 1GB version. I also measured power at the wall using a Kill A Watt. The PSU handled the new card with no issues. My power draw at the wall is around 275W when playing SCII on Ultra.

If you have the 400CX, you'll be fine.
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a c 171 Î Nvidia
August 19, 2010 12:56:56 PM

This topic has been closed by Mousemonkey
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